This series is located in box 1, folders 1-7. It contains promotional material related to the introduction of the various contemporary passenger trains. Most material dates into the 1950s and contains information on the California Zephyr, General Pershing, Zephyr, Kansas City Zephyr, Pioneer Zephyr, Silver Streak Zephyr and the Twin Cities Zephyr. Included are press kits, booklets, flyers and souvenir tickets. Photographs originally enclosed with the packets for the Kansas City Zephyr and the American Royal Zephyr are housed with Series VI.